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| author | Jonathan Nieder <jrnieder@gmail.com> | 2014-08-12 17:03:18 -0700 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2014-08-25 15:17:34 -0700 |
| commit | 6a143aa2b23b97fa8363e2f4fd16f23b4c5b104d (patch) | |
| tree | 6b8755ddc6c9210f39a5f477c41d859e9114d3c5 | |
| parent | 6c1db1b38886f70165cb9f5822b1a2e99a2c331b (diff) | |
| download | git-jn/unpack-trees-checkout-m-carry-deletion.tar.gz | |
checkout -m: attempt merge when deletion of path was stagedjn/unpack-trees-checkout-m-carry-deletion
twoway_merge() is missing an o->gently check in the case where a file
that needs to be modified is missing from the index but present in the
old and new trees. As a result, in this case 'git checkout -m' errors
out instead of trying to perform a merge.
Fix it by checking o->gently. While at it, inline the o->gently check
into reject_merge to prevent future call sites from making the same
mistake.
Noticed by code inspection. The test for the motivating case was
added by JC.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rwxr-xr-x | t/t7201-co.sh | 17 | ||||
| -rw-r--r-- | unpack-trees.c | 11 |
2 files changed, 23 insertions, 5 deletions
diff --git a/t/t7201-co.sh b/t/t7201-co.sh index 0c9ec0ad44..eae9e5a937 100755 --- a/t/t7201-co.sh +++ b/t/t7201-co.sh @@ -223,6 +223,23 @@ test_expect_success 'checkout --merge --conflict=diff3 <branch>' ' test_cmp two expect ' +test_expect_success 'switch to another branch while carrying a deletion' ' + + git checkout -f master && git reset --hard && git clean -f && + git rm two && + + test_must_fail git checkout simple 2>errs && + test_i18ngrep overwritten errs && + + git checkout --merge simple 2>errs && + test_i18ngrep ! overwritten errs && + git ls-files -u && + test_must_fail git cat-file -t :0:two && + test "$(git cat-file -t :1:two)" = blob && + test "$(git cat-file -t :2:two)" = blob && + test_must_fail git cat-file -t :3:two +' + test_expect_success 'checkout to detach HEAD (with advice declined)' ' git config advice.detachedHead false && diff --git a/unpack-trees.c b/unpack-trees.c index 187b15b56f..6c45af7248 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -1178,7 +1178,8 @@ return_failed: static int reject_merge(const struct cache_entry *ce, struct unpack_trees_options *o) { - return add_rejected_path(o, ERROR_WOULD_OVERWRITE, ce->name); + return o->gently ? -1 : + add_rejected_path(o, ERROR_WOULD_OVERWRITE, ce->name); } static int same(const struct cache_entry *a, const struct cache_entry *b) @@ -1633,7 +1634,7 @@ int threeway_merge(const struct cache_entry * const *stages, /* #14, #14ALT, #2ALT */ if (remote && !df_conflict_head && head_match && !remote_match) { if (index && !same(index, remote) && !same(index, head)) - return o->gently ? -1 : reject_merge(index, o); + return reject_merge(index, o); return merged_entry(remote, index, o); } /* @@ -1641,7 +1642,7 @@ int threeway_merge(const struct cache_entry * const *stages, * make sure that it matches head. */ if (index && !same(index, head)) - return o->gently ? -1 : reject_merge(index, o); + return reject_merge(index, o); if (head) { /* #5ALT, #15 */ @@ -1770,7 +1771,7 @@ int twoway_merge(const struct cache_entry * const *src, else return merged_entry(newtree, current, o); } - return o->gently ? -1 : reject_merge(current, o); + return reject_merge(current, o); } else if ((!oldtree && !newtree) || /* 4 and 5 */ (!oldtree && newtree && same(current, newtree)) || /* 6 and 7 */ @@ -1788,7 +1789,7 @@ int twoway_merge(const struct cache_entry * const *src, /* 20 or 21 */ return merged_entry(newtree, current, o); } else - return o->gently ? -1 : reject_merge(current, o); + return reject_merge(current, o); } else if (newtree) { if (oldtree && !o->initial_checkout) { |